Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linvill...
[linux-2.6] / drivers / usb / serial / sierra.c
1 /*
2   USB Driver for Sierra Wireless
3
4   Copyright (C) 2006, 2007  Kevin Lloyd <linux@sierrawireless.com>
5
6   IMPORTANT DISCLAIMER: This driver is not commercially supported by
7   Sierra Wireless. Use at your own risk.
8
9   This driver is free software; you can redistribute it and/or modify
10   it under the terms of Version 2 of the GNU General Public License as
11   published by the Free Software Foundation.
12
13   Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
14   Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
15 */
16
17 #define DRIVER_VERSION "v.1.2.5b"
18 #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
19 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
20
21 #include <linux/kernel.h>
22 #include <linux/jiffies.h>
23 #include <linux/errno.h>
24 #include <linux/tty.h>
25 #include <linux/tty_flip.h>
26 #include <linux/module.h>
27 #include <linux/usb.h>
28 #include <linux/usb/serial.h>
29
30 #define SWIMS_USB_REQUEST_SetMode       0x0B
31 #define SWIMS_USB_REQUEST_TYPE_SetMode  0x40
32 #define SWIMS_USB_INDEX_SetMode         0x0000
33 #define SWIMS_SET_MODE_Modem            0x0001
34
35 /* per port private data */
36 #define N_IN_URB        4
37 #define N_OUT_URB       4
38 #define IN_BUFLEN       4096
39
40 static int debug;
41
42 enum devicetype {
43         DEVICE_3_PORT =         0,
44         DEVICE_1_PORT =         1,
45         DEVICE_INSTALLER =      2,
46 };
47
48 static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
49 {
50         int result;
51         dev_dbg(&udev->dev, "%s", "SET POWER STATE\n");
52         result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
53                         0x00,                   /* __u8 request      */
54                         0x40,                   /* __u8 request type */
55                         swiState,               /* __u16 value       */
56                         0,                      /* __u16 index       */
57                         NULL,                   /* void *data        */
58                         0,                      /* __u16 size        */
59                         USB_CTRL_SET_TIMEOUT);  /* int timeout       */
60         return result;
61 }
62
63 static int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
64 {
65         int result;
66         dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH\n");
67         result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
68                         SWIMS_USB_REQUEST_SetMode,      /* __u8 request      */
69                         SWIMS_USB_REQUEST_TYPE_SetMode, /* __u8 request type */
70                         eSocMode,                       /* __u16 value       */
71                         SWIMS_USB_INDEX_SetMode,        /* __u16 index       */
72                         NULL,                           /* void *data        */
73                         0,                              /* __u16 size        */
74                         USB_CTRL_SET_TIMEOUT);          /* int timeout       */
75         return result;
76 }
77
78 static int sierra_probe(struct usb_interface *iface,
79                         const struct usb_device_id *id)
80 {
81         int result;
82         struct usb_device *udev;
83
84         udev = usb_get_dev(interface_to_usbdev(iface));
85
86         /* Check if in installer mode */
87         if (id->driver_info == DEVICE_INSTALLER) {
88                 dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n");
89                 result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
90                 /*We do not want to bind to the device when in installer mode*/
91                 return -EIO;
92         }
93
94         return usb_serial_probe(iface, id);
95 }
96
97 static struct usb_device_id id_table [] = {
98         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
99         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
100         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
101         { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
102         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
103         { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
104         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
105         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
106         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
107
108         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
109         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
110         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
111         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
112         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
113         { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
114         { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
115         { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
116         { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
117         { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
118         { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
119
120         { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
121         { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
122
123         { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
124         { }
125 };
126 MODULE_DEVICE_TABLE(usb, id_table);
127
128 static struct usb_device_id id_table_1port [] = {
129         { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
130         { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
131         { }
132 };
133
134 static struct usb_device_id id_table_3port [] = {
135         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
136         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
137         { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */
138         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
139         { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
140         { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
141         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
142         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
143         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U*/
144
145         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
146         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
147         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
148         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
149         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
150         { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/
151         { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/
152         { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
153         { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
154         { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880E */
155         { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881E */
156         { }
157 };
158
159 static struct usb_driver sierra_driver = {
160         .name       = "sierra",
161         .probe      = sierra_probe,
162         .disconnect = usb_serial_disconnect,
163         .id_table   = id_table,
164         .no_dynamic_id =        1,
165 };
166
167
168 struct sierra_port_private {
169         spinlock_t lock;        /* lock the structure */
170         int outstanding_urbs;   /* number of out urbs in flight */
171
172         /* Input endpoints and buffer for this port */
173         struct urb *in_urbs[N_IN_URB];
174         char in_buffer[N_IN_URB][IN_BUFLEN];
175
176         /* Settings for the port */
177         int rts_state;  /* Handshaking pins (outputs) */
178         int dtr_state;
179         int cts_state;  /* Handshaking pins (inputs) */
180         int dsr_state;
181         int dcd_state;
182         int ri_state;
183 };
184
185 static int sierra_send_setup(struct usb_serial_port *port)
186 {
187         struct usb_serial *serial = port->serial;
188         struct sierra_port_private *portdata;
189
190         dbg("%s", __FUNCTION__);
191
192         portdata = usb_get_serial_port_data(port);
193
194         if (port->tty) {
195                 int val = 0;
196                 if (portdata->dtr_state)
197                         val |= 0x01;
198                 if (portdata->rts_state)
199                         val |= 0x02;
200
201                 return usb_control_msg(serial->dev,
202                                 usb_rcvctrlpipe(serial->dev, 0),
203                                 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
204         }
205
206         return 0;
207 }
208
209 static void sierra_rx_throttle(struct usb_serial_port *port)
210 {
211         dbg("%s", __FUNCTION__);
212 }
213
214 static void sierra_rx_unthrottle(struct usb_serial_port *port)
215 {
216         dbg("%s", __FUNCTION__);
217 }
218
219 static void sierra_break_ctl(struct usb_serial_port *port, int break_state)
220 {
221         /* Unfortunately, I don't know how to send a break */
222         dbg("%s", __FUNCTION__);
223 }
224
225 static void sierra_set_termios(struct usb_serial_port *port,
226                         struct ktermios *old_termios)
227 {
228         dbg("%s", __FUNCTION__);
229         tty_termios_copy_hw(port->tty->termios, old_termios);
230         sierra_send_setup(port);
231 }
232
233 static int sierra_tiocmget(struct usb_serial_port *port, struct file *file)
234 {
235         unsigned int value;
236         struct sierra_port_private *portdata;
237
238         portdata = usb_get_serial_port_data(port);
239
240         value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
241                 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
242                 ((portdata->cts_state) ? TIOCM_CTS : 0) |
243                 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
244                 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
245                 ((portdata->ri_state) ? TIOCM_RNG : 0);
246
247         return value;
248 }
249
250 static int sierra_tiocmset(struct usb_serial_port *port, struct file *file,
251                         unsigned int set, unsigned int clear)
252 {
253         struct sierra_port_private *portdata;
254
255         portdata = usb_get_serial_port_data(port);
256
257         if (set & TIOCM_RTS)
258                 portdata->rts_state = 1;
259         if (set & TIOCM_DTR)
260                 portdata->dtr_state = 1;
261
262         if (clear & TIOCM_RTS)
263                 portdata->rts_state = 0;
264         if (clear & TIOCM_DTR)
265                 portdata->dtr_state = 0;
266         return sierra_send_setup(port);
267 }
268
269 static int sierra_ioctl(struct usb_serial_port *port, struct file *file,
270                         unsigned int cmd, unsigned long arg)
271 {
272         return -ENOIOCTLCMD;
273 }
274
275 static void sierra_outdat_callback(struct urb *urb)
276 {
277         struct usb_serial_port *port = urb->context;
278         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
279         int status = urb->status;
280         unsigned long flags;
281
282         dbg("%s - port %d", __FUNCTION__, port->number);
283
284         /* free up the transfer buffer, as usb_free_urb() does not do this */
285         kfree(urb->transfer_buffer);
286
287         if (status)
288                 dbg("%s - nonzero write bulk status received: %d",
289                     __FUNCTION__, status);
290
291         spin_lock_irqsave(&portdata->lock, flags);
292         --portdata->outstanding_urbs;
293         spin_unlock_irqrestore(&portdata->lock, flags);
294
295         usb_serial_port_softint(port);
296 }
297
298 /* Write */
299 static int sierra_write(struct usb_serial_port *port,
300                         const unsigned char *buf, int count)
301 {
302         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
303         struct usb_serial *serial = port->serial;
304         unsigned long flags;
305         unsigned char *buffer;
306         struct urb *urb;
307         int status;
308
309         portdata = usb_get_serial_port_data(port);
310
311         dbg("%s: write (%d chars)", __FUNCTION__, count);
312
313         spin_lock_irqsave(&portdata->lock, flags);
314         if (portdata->outstanding_urbs > N_OUT_URB) {
315                 spin_unlock_irqrestore(&portdata->lock, flags);
316                 dbg("%s - write limit hit\n", __FUNCTION__);
317                 return 0;
318         }
319         portdata->outstanding_urbs++;
320         spin_unlock_irqrestore(&portdata->lock, flags);
321
322         buffer = kmalloc(count, GFP_ATOMIC);
323         if (!buffer) {
324                 dev_err(&port->dev, "out of memory\n");
325                 count = -ENOMEM;
326                 goto error_no_buffer;
327         }
328
329         urb = usb_alloc_urb(0, GFP_ATOMIC);
330         if (!urb) {
331                 dev_err(&port->dev, "no more free urbs\n");
332                 count = -ENOMEM;
333                 goto error_no_urb;
334         }
335
336         memcpy(buffer, buf, count);
337
338         usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
339
340         usb_fill_bulk_urb(urb, serial->dev,
341                           usb_sndbulkpipe(serial->dev,
342                                           port->bulk_out_endpointAddress),
343                           buffer, count, sierra_outdat_callback, port);
344
345         /* send it down the pipe */
346         status = usb_submit_urb(urb, GFP_ATOMIC);
347         if (status) {
348                 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
349                         "with status = %d\n", __FUNCTION__, status);
350                 count = status;
351                 goto error;
352         }
353
354         /* we are done with this urb, so let the host driver
355          * really free it when it is finished with it */
356         usb_free_urb(urb);
357
358         return count;
359 error:
360         usb_free_urb(urb);
361 error_no_urb:
362         kfree(buffer);
363 error_no_buffer:
364         spin_lock_irqsave(&portdata->lock, flags);
365         --portdata->outstanding_urbs;
366         spin_unlock_irqrestore(&portdata->lock, flags);
367         return count;
368 }
369
370 static void sierra_indat_callback(struct urb *urb)
371 {
372         int err;
373         int endpoint;
374         struct usb_serial_port *port;
375         struct tty_struct *tty;
376         unsigned char *data = urb->transfer_buffer;
377         int status = urb->status;
378
379         dbg("%s: %p", __FUNCTION__, urb);
380
381         endpoint = usb_pipeendpoint(urb->pipe);
382         port = (struct usb_serial_port *) urb->context;
383
384         if (status) {
385                 dbg("%s: nonzero status: %d on endpoint %02x.",
386                     __FUNCTION__, status, endpoint);
387         } else {
388                 tty = port->tty;
389                 if (urb->actual_length) {
390                         tty_buffer_request_room(tty, urb->actual_length);
391                         tty_insert_flip_string(tty, data, urb->actual_length);
392                         tty_flip_buffer_push(tty);
393                 } else {
394                         dbg("%s: empty read urb received", __FUNCTION__);
395                 }
396
397                 /* Resubmit urb so we continue receiving */
398                 if (port->open_count && status != -ESHUTDOWN) {
399                         err = usb_submit_urb(urb, GFP_ATOMIC);
400                         if (err)
401                                 dev_err(&port->dev, "resubmit read urb failed."
402                                         "(%d)\n", err);
403                 }
404         }
405         return;
406 }
407
408 static void sierra_instat_callback(struct urb *urb)
409 {
410         int err;
411         int status = urb->status;
412         struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
413         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
414         struct usb_serial *serial = port->serial;
415
416         dbg("%s", __FUNCTION__);
417         dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
418
419         if (status == 0) {
420                 struct usb_ctrlrequest *req_pkt =
421                                 (struct usb_ctrlrequest *)urb->transfer_buffer;
422
423                 if (!req_pkt) {
424                         dbg("%s: NULL req_pkt\n", __FUNCTION__);
425                         return;
426                 }
427                 if ((req_pkt->bRequestType == 0xA1) &&
428                                 (req_pkt->bRequest == 0x20)) {
429                         int old_dcd_state;
430                         unsigned char signals = *((unsigned char *)
431                                         urb->transfer_buffer +
432                                         sizeof(struct usb_ctrlrequest));
433
434                         dbg("%s: signal x%x", __FUNCTION__, signals);
435
436                         old_dcd_state = portdata->dcd_state;
437                         portdata->cts_state = 1;
438                         portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
439                         portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
440                         portdata->ri_state = ((signals & 0x08) ? 1 : 0);
441
442                         if (port->tty && !C_CLOCAL(port->tty) &&
443                                         old_dcd_state && !portdata->dcd_state)
444                                 tty_hangup(port->tty);
445                 } else {
446                         dbg("%s: type %x req %x", __FUNCTION__,
447                                 req_pkt->bRequestType,req_pkt->bRequest);
448                 }
449         } else
450                 dbg("%s: error %d", __FUNCTION__, status);
451
452         /* Resubmit urb so we continue receiving IRQ data */
453         if (status != -ESHUTDOWN) {
454                 urb->dev = serial->dev;
455                 err = usb_submit_urb(urb, GFP_ATOMIC);
456                 if (err)
457                         dbg("%s: resubmit intr urb failed. (%d)",
458                                 __FUNCTION__, err);
459         }
460 }
461
462 static int sierra_write_room(struct usb_serial_port *port)
463 {
464         struct sierra_port_private *portdata = usb_get_serial_port_data(port);
465         unsigned long flags;
466
467         dbg("%s - port %d", __FUNCTION__, port->number);
468
469         /* try to give a good number back based on if we have any free urbs at
470          * this point in time */
471         spin_lock_irqsave(&portdata->lock, flags);
472         if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
473                 spin_unlock_irqrestore(&portdata->lock, flags);
474                 dbg("%s - write limit hit\n", __FUNCTION__);
475                 return 0;
476         }
477         spin_unlock_irqrestore(&portdata->lock, flags);
478
479         return 2048;
480 }
481
482 static int sierra_chars_in_buffer(struct usb_serial_port *port)
483 {
484         dbg("%s - port %d", __FUNCTION__, port->number);
485
486         /*
487          * We can't really account for how much data we
488          * have sent out, but hasn't made it through to the
489          * device as we can't see the backend here, so just
490          * tell the tty layer that everything is flushed.
491          */
492         return 0;
493 }
494
495 static int sierra_open(struct usb_serial_port *port, struct file *filp)
496 {
497         struct sierra_port_private *portdata;
498         struct usb_serial *serial = port->serial;
499         int i;
500         struct urb *urb;
501         int result;
502
503         portdata = usb_get_serial_port_data(port);
504
505         dbg("%s", __FUNCTION__);
506
507         /* Set some sane defaults */
508         portdata->rts_state = 1;
509         portdata->dtr_state = 1;
510
511         /* Reset low level data toggle and start reading from endpoints */
512         for (i = 0; i < N_IN_URB; i++) {
513                 urb = portdata->in_urbs[i];
514                 if (!urb)
515                         continue;
516                 if (urb->dev != serial->dev) {
517                         dbg("%s: dev %p != %p", __FUNCTION__,
518                                 urb->dev, serial->dev);
519                         continue;
520                 }
521
522                 /*
523                  * make sure endpoint data toggle is synchronized with the
524                  * device
525                  */
526                 usb_clear_halt(urb->dev, urb->pipe);
527
528                 result = usb_submit_urb(urb, GFP_KERNEL);
529                 if (result) {
530                         dev_err(&port->dev, "submit urb %d failed (%d) %d\n",
531                                 i, result, urb->transfer_buffer_length);
532                 }
533         }
534
535         port->tty->low_latency = 1;
536
537         sierra_send_setup(port);
538
539         /* start up the interrupt endpoint if we have one */
540         if (port->interrupt_in_urb) {
541                 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
542                 if (result)
543                         dev_err(&port->dev, "submit irq_in urb failed %d\n",
544                                 result);
545         }
546         return 0;
547 }
548
549 static void sierra_close(struct usb_serial_port *port, struct file *filp)
550 {
551         int i;
552         struct usb_serial *serial = port->serial;
553         struct sierra_port_private *portdata;
554
555         dbg("%s", __FUNCTION__);
556         portdata = usb_get_serial_port_data(port);
557
558         portdata->rts_state = 0;
559         portdata->dtr_state = 0;
560
561         if (serial->dev) {
562                 sierra_send_setup(port);
563
564                 /* Stop reading/writing urbs */
565                 for (i = 0; i < N_IN_URB; i++)
566                         usb_kill_urb(portdata->in_urbs[i]);
567         }
568
569         usb_kill_urb(port->interrupt_in_urb);
570
571         port->tty = NULL;
572 }
573
574 static int sierra_startup(struct usb_serial *serial)
575 {
576         struct usb_serial_port *port;
577         struct sierra_port_private *portdata;
578         struct urb *urb;
579         int i;
580         int j;
581
582         dbg("%s", __FUNCTION__);
583
584         /*Set Device mode to D0 */
585         sierra_set_power_state(serial->dev, 0x0000);
586
587         /* Now setup per port private data */
588         for (i = 0; i < serial->num_ports; i++) {
589                 port = serial->port[i];
590                 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
591                 if (!portdata) {
592                         dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
593                                         __FUNCTION__, i);
594                         return -ENOMEM;
595                 }
596                 spin_lock_init(&portdata->lock);
597
598                 usb_set_serial_port_data(port, portdata);
599
600                 /* initialize the in urbs */
601                 for (j = 0; j < N_IN_URB; ++j) {
602                         urb = usb_alloc_urb(0, GFP_KERNEL);
603                         if (urb == NULL) {
604                                 dbg("%s: alloc for in port failed.",
605                                     __FUNCTION__);
606                                 continue;
607                         }
608                         /* Fill URB using supplied data. */
609                         usb_fill_bulk_urb(urb, serial->dev,
610                                           usb_rcvbulkpipe(serial->dev,
611                                                 port->bulk_in_endpointAddress),
612                                           portdata->in_buffer[j], IN_BUFLEN,
613                                           sierra_indat_callback, port);
614                         portdata->in_urbs[j] = urb;
615                 }
616         }
617
618         return 0;
619 }
620
621 static void sierra_shutdown(struct usb_serial *serial)
622 {
623         int i, j;
624         struct usb_serial_port *port;
625         struct sierra_port_private *portdata;
626
627         dbg("%s", __FUNCTION__);
628
629         for (i = 0; i < serial->num_ports; ++i) {
630                 port = serial->port[i];
631                 if (!port)
632                         continue;
633                 portdata = usb_get_serial_port_data(port);
634                 if (!portdata)
635                         continue;
636
637                 for (j = 0; j < N_IN_URB; j++) {
638                         usb_kill_urb(portdata->in_urbs[j]);
639                         usb_free_urb(portdata->in_urbs[j]);
640                         portdata->in_urbs[j] = NULL;
641                 }
642                 kfree(portdata);
643                 usb_set_serial_port_data(port, NULL);
644         }
645 }
646
647 static struct usb_serial_driver sierra_1port_device = {
648         .driver = {
649                 .owner =        THIS_MODULE,
650                 .name =         "sierra1",
651         },
652         .description       = "Sierra USB modem (1 port)",
653         .id_table          = id_table_1port,
654         .usb_driver        = &sierra_driver,
655         .num_interrupt_in  = NUM_DONT_CARE,
656         .num_bulk_in       = 1,
657         .num_bulk_out      = 1,
658         .num_ports         = 1,
659         .open              = sierra_open,
660         .close             = sierra_close,
661         .write             = sierra_write,
662         .write_room        = sierra_write_room,
663         .chars_in_buffer   = sierra_chars_in_buffer,
664         .throttle          = sierra_rx_throttle,
665         .unthrottle        = sierra_rx_unthrottle,
666         .ioctl             = sierra_ioctl,
667         .set_termios       = sierra_set_termios,
668         .break_ctl         = sierra_break_ctl,
669         .tiocmget          = sierra_tiocmget,
670         .tiocmset          = sierra_tiocmset,
671         .attach            = sierra_startup,
672         .shutdown          = sierra_shutdown,
673         .read_int_callback = sierra_instat_callback,
674 };
675
676 static struct usb_serial_driver sierra_3port_device = {
677         .driver = {
678                 .owner =        THIS_MODULE,
679                 .name =         "sierra3",
680         },
681         .description       = "Sierra USB modem (3 port)",
682         .id_table          = id_table_3port,
683         .usb_driver        = &sierra_driver,
684         .num_interrupt_in  = NUM_DONT_CARE,
685         .num_bulk_in       = 3,
686         .num_bulk_out      = 3,
687         .num_ports         = 3,
688         .open              = sierra_open,
689         .close             = sierra_close,
690         .write             = sierra_write,
691         .write_room        = sierra_write_room,
692         .chars_in_buffer   = sierra_chars_in_buffer,
693         .throttle          = sierra_rx_throttle,
694         .unthrottle        = sierra_rx_unthrottle,
695         .ioctl             = sierra_ioctl,
696         .set_termios       = sierra_set_termios,
697         .break_ctl         = sierra_break_ctl,
698         .tiocmget          = sierra_tiocmget,
699         .tiocmset          = sierra_tiocmset,
700         .attach            = sierra_startup,
701         .shutdown          = sierra_shutdown,
702         .read_int_callback = sierra_instat_callback,
703 };
704
705 /* Functions used by new usb-serial code. */
706 static int __init sierra_init(void)
707 {
708         int retval;
709         retval = usb_serial_register(&sierra_1port_device);
710         if (retval)
711                 goto failed_1port_device_register;
712         retval = usb_serial_register(&sierra_3port_device);
713         if (retval)
714                 goto failed_3port_device_register;
715
716
717         retval = usb_register(&sierra_driver);
718         if (retval)
719                 goto failed_driver_register;
720
721         info(DRIVER_DESC ": " DRIVER_VERSION);
722
723         return 0;
724
725 failed_driver_register:
726         usb_serial_deregister(&sierra_3port_device);
727 failed_3port_device_register:
728         usb_serial_deregister(&sierra_1port_device);
729 failed_1port_device_register:
730         return retval;
731 }
732
733 static void __exit sierra_exit(void)
734 {
735         usb_deregister (&sierra_driver);
736         usb_serial_deregister(&sierra_1port_device);
737         usb_serial_deregister(&sierra_3port_device);
738 }
739
740 module_init(sierra_init);
741 module_exit(sierra_exit);
742
743 MODULE_AUTHOR(DRIVER_AUTHOR);
744 MODULE_DESCRIPTION(DRIVER_DESC);
745 MODULE_VERSION(DRIVER_VERSION);
746 MODULE_LICENSE("GPL");
747
748 #ifdef CONFIG_USB_DEBUG
749 module_param(debug, bool, S_IRUGO | S_IWUSR);
750 MODULE_PARM_DESC(debug, "Debug messages");
751 #endif
752